PHP Joseph game code example

This article brings you code examples about the PHP Joseph game. It has certain reference value. Friends in need can refer to it. I hope it will be helpful to you.

30 people in a boat, overloaded, 15 people needed to disembark. So people line up, and the position in the line is their number. Count, starting from 1, and those who count to 9 get off the boat. This cycle continues until there are only 15 people left on the boat. Which numbered people have disembarked?

$numberStart = 30; //开始的人数
$numberLive  = 15; //最终剩下的人数
$numKill     = 9;  //"中奖"号码
$peopleList  = [];
for($i=1; $i<=$numberStart; $i++){
	$peopleList[$i]=1; //1表示生 0表示死
}

$numSay=0;//报号
$i     =1;//索引(人员位置编号，相当于枪指向谁)
$maxIndex = $numberStart;

while (true){
	if($i > $maxIndex ){//循环一圈后，重新开始
		$i = 1;
	}
	if($numberStart==$numberLive){//游戏结束条件
		break;
	}
	if($peopleList[$i]==0){//如果这个人已经"离开"了，让下一个人报号
		$i++;
		continue;
	}
	$numSay++;
	if($numSay==$numKill){
		$peopleList[$i] = 0;
		$numSay         = 0;
		echo $i.&#39;号下船了&#39;.PHP_EOL;
		$numberStart--;
	}
	$i++;
}
print_r($peopleList);
/*
9号下船了
18号下船了
27号下船了
6号下船了
16号下船了
26号下船了
7号下船了
19号下船了
30号下船了
12号下船了
24号下船了
8号下船了
22号下船了
5号下船了
23号下船了
*/

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